102 



pean writers of the last century, to settle points in regard to species common 

 to both countries which could at the best have only a slight value An exam- 

 ination of the writings of those who have attempted to give as authorities for 

 the species of Agaricacece only those who accepted the genera now adopted 

 as genera rather than subgenera has shown so many inconsistencies and 

 inaccuracies that we have not been able to follow them. 



For uniformity's sake we have followed the same plan in regard to the purely 

 North American species, but in this case, as all American references known to 

 us are given, with dates, the reader has the means of settling the question of 

 authority for himself. 



As used here in its limited sense we have kept under Agaricus the species 

 placed by mycologists in Psalliota and Pratella, the type of the genus being 

 Agaricus campestris, L. 



Agaricus abietinus, Bull. 



See Lenzites abietina, (Bull.) Fr. 



Agaricus abortivus, B. & C. 



See CI Hop il us abortivus, B. & C. 



Agaricus abruptus, Pk. 



Pk. Mem. N. Y. Mus. 3; 163. d.pl. 59,/. 8-14. Nov. 1900. 

 White, Bull. Torr. Bot. Club. 29 : 561. 26 Sept. 1902. 

 Longyear, Rept. Mich. Acad. 4 : 115. 1904. 



Agaricus silvicola, Pk. non Vitt. 

 Pk. Rept. N. Y. Mus. 23 : 97. d. 1872. 

 Pk. Rept. N. Y. Mus. 36: 47. d. 1885. 

 Pk. Country Gent. 59 : 518 (31). 12 July 1894. 



Agaricus arvensis, var. abruptus, Pk. 

 Pk. Rept. N. Y. Mus. 46 : 135 (55). d. Dec. 1893 and Rev. Myc. 16 : 



126. 1 July 1894. 

 Pk. Country Gent. 59 : 518 (30). 12 Julv 1894. 

 Pk. Bull. N. Y. Mus. 6 : 213. July 1899. 



Agaricus silvicola, var. abruptus, (Pk.) Conant. 

 Conant, Bull. Boston Myc. Club. 19. 5 Feb. 1903. 



Agaricus abseondens, Pk. 



See Pleurotus lignatilis, (P.) Fr. 



Agaricus abundans, Pk. 



See Collybia abundans, Pk. 



Agaricus aeerieolus, Pk. 



See Pholiota acericola, Pk. 



Agaricus aeervatus, Fr. 

 See Collybia acervata, Fr. 



Agaricus Aehimenes, B. & C. 



B. & C. Am. Jour. Sci. 11. 8 : 403. d. Nov. 1849. 



B. & C. Hook. Jour. Bot. 1 : 98 (2). d. 1849. [no. 202.] 



Rav. Charleston Med. Jour. & Rev. 6 : 192. March 181; 1. 



M. A. Curtis, Bot. N. Car. 90. 1867. 



Sacc. Cub. & Mane. Syll. 5 : 995. d. 28 May 1887. 



Mcllvaine & Macadam, Am. Fung. 340. d. 1900. 

 Psalliota Aehimenes, Lloyd. 



Lloyd, Myc. Notes 29. Nov. 1899. 

 Agaricus Aeieula, Schceff. 



See Mycena Acicula, (Scharff.) Fr. 



Agaricus aeieularis, Muhl. 



Note. This is possibly Mycena capillaris, (Schum.) Fr. 



Muhl. Tr. Am. Phil. Soc. 3: 184. 1793. 



Agaricus aeris. Bolt. 



See Lactarius acris, (Bolt.) Fr. 



